[1][2][3] It was endemic to Sri Lanka, where it was recorded from the vicinity of Galle.

[1][4] The specific name zimmeri honours Carl Wilhelm Erich Zimmer, a German zoologist.

[3] Pseudophilautus zimmeri is only known from the holotype, an adult male measuring 31.6 mm (1.24 in) in snout–vent length.

The canthal edges are sharp, and the supra-tympanic fold is prominent; the tympanum is visible.

At its type locality, P. zimmeri is assumed to have become extinct due to habitat loss caused by urbanization.